unleashed-firmware/targets/f7/furi_hal/furi_hal_ibutton.c
hedger bc309cebe6
Toolchain fixes (#3451)
toolchain: updated to v33 with debugging & other fixes
toolchain: better error handling during update/env configuration process
debugging: improved udev rules file, added readme on installation
firmware: bumped compiler C/C++ standards (stricter code checks)
firmware: fixed warnings emerging from newer standards
ufbt: FBT_NOENV is now also supported by ufbt
fbt: added ccache-related variables to env forward list on Windows
2024-02-26 16:16:19 +04:00

104 lines
3.2 KiB
C

#include <furi_hal_ibutton.h>
#include <furi_hal_interrupt.h>
#include <furi_hal_resources.h>
#include <furi_hal_bus.h>
#include <stm32wbxx_ll_tim.h>
#include <furi.h>
#define TAG "FuriHalIbutton"
#define FURI_HAL_IBUTTON_TIMER TIM1
#define FURI_HAL_IBUTTON_TIMER_BUS FuriHalBusTIM1
#define FURI_HAL_IBUTTON_TIMER_IRQ FuriHalInterruptIdTim1UpTim16
typedef enum {
FuriHalIbuttonStateIdle,
FuriHalIbuttonStateRunning,
} FuriHalIbuttonState;
typedef struct {
FuriHalIbuttonState state;
FuriHalIbuttonEmulateCallback callback;
void* context;
} FuriHalIbutton;
FuriHalIbutton* furi_hal_ibutton = NULL;
static void furi_hal_ibutton_emulate_isr(void* context) {
UNUSED(context);
if(LL_TIM_IsActiveFlag_UPDATE(FURI_HAL_IBUTTON_TIMER)) {
LL_TIM_ClearFlag_UPDATE(FURI_HAL_IBUTTON_TIMER);
furi_hal_ibutton->callback(furi_hal_ibutton->context);
}
}
void furi_hal_ibutton_init() {
furi_hal_ibutton = malloc(sizeof(FuriHalIbutton));
furi_hal_ibutton->state = FuriHalIbuttonStateIdle;
FURI_LOG_I(TAG, "Init OK");
}
void furi_hal_ibutton_emulate_start(
uint32_t period,
FuriHalIbuttonEmulateCallback callback,
void* context) {
furi_assert(furi_hal_ibutton);
furi_assert(furi_hal_ibutton->state == FuriHalIbuttonStateIdle);
furi_hal_ibutton->state = FuriHalIbuttonStateRunning;
furi_hal_ibutton->callback = callback;
furi_hal_ibutton->context = context;
furi_hal_bus_enable(FURI_HAL_IBUTTON_TIMER_BUS);
furi_hal_interrupt_set_isr(FURI_HAL_IBUTTON_TIMER_IRQ, furi_hal_ibutton_emulate_isr, NULL);
LL_TIM_SetPrescaler(FURI_HAL_IBUTTON_TIMER, 0);
LL_TIM_SetCounterMode(FURI_HAL_IBUTTON_TIMER, LL_TIM_COUNTERMODE_UP);
LL_TIM_SetAutoReload(FURI_HAL_IBUTTON_TIMER, period);
LL_TIM_DisableARRPreload(FURI_HAL_IBUTTON_TIMER);
LL_TIM_SetRepetitionCounter(FURI_HAL_IBUTTON_TIMER, 0);
LL_TIM_SetClockDivision(FURI_HAL_IBUTTON_TIMER, LL_TIM_CLOCKDIVISION_DIV1);
LL_TIM_SetClockSource(FURI_HAL_IBUTTON_TIMER, LL_TIM_CLOCKSOURCE_INTERNAL);
LL_TIM_GenerateEvent_UPDATE(FURI_HAL_IBUTTON_TIMER);
LL_TIM_EnableIT_UPDATE(FURI_HAL_IBUTTON_TIMER);
LL_TIM_EnableCounter(FURI_HAL_IBUTTON_TIMER);
}
void furi_hal_ibutton_emulate_set_next(uint32_t period) {
LL_TIM_SetAutoReload(FURI_HAL_IBUTTON_TIMER, period);
}
void furi_hal_ibutton_emulate_stop() {
furi_assert(furi_hal_ibutton);
if(furi_hal_ibutton->state == FuriHalIbuttonStateRunning) {
furi_hal_ibutton->state = FuriHalIbuttonStateIdle;
LL_TIM_DisableCounter(FURI_HAL_IBUTTON_TIMER);
furi_hal_bus_disable(FURI_HAL_IBUTTON_TIMER_BUS);
furi_hal_interrupt_set_isr(FURI_HAL_IBUTTON_TIMER_IRQ, NULL, NULL);
furi_hal_ibutton->callback = NULL;
furi_hal_ibutton->context = NULL;
}
}
void furi_hal_ibutton_pin_configure() {
furi_hal_gpio_write(&gpio_ibutton, true);
furi_hal_gpio_init(&gpio_ibutton, GpioModeOutputOpenDrain, GpioPullNo, GpioSpeedLow);
}
void furi_hal_ibutton_pin_reset() {
furi_hal_gpio_write(&gpio_ibutton, true);
furi_hal_gpio_init(&gpio_ibutton, GpioModeAnalog, GpioPullNo, GpioSpeedLow);
}
void furi_hal_ibutton_pin_write(const bool state) {
furi_hal_gpio_write(&gpio_ibutton, state);
}